Joseph l



(No Model.)

J. L. COX. ROTARY WEB SEVERINGMAGHINE.

Patented Dec. 15, 1891.

@C/Qn 4 I WJZJVESSES @5 4 @M UNITED STATES PATENT Crrrca JOSEPH L. COX,OF BATTLE CREEK, MICHIGAN, ASSIGNOR TO THE DUPLEX PRINTING PRESSCOMPANY, OF SAME PLACE.

ignates a delivery or feed roll.

: ning over a triangularly-arranged set of rollsheets of paper from aweb. Fig. 2 is a detail for use in connection with web-printing tion ofthe knife-bearing or cutting roll, and

ROTARY WEB-SEVERING MACHINE.

SPECIFICATION forming part of Letters Patent No. 465,427, dated December15, 1891.

Application filed January 19, 1891.

.To all whom it may concern.-

Be it known that I, JOSEPH L. COX, of Battle Creek, in the county ofCalhoun and State of Michigan, have invented certain new and usefulImprovements in Rotary Web-severing Machines; and I do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings, and to the letters ofreference marked thereon, which form part of this specification, inwhich Figure l is a diagrammatical sectional view of my improvedmechanism for severing transverse section through the knife roll. Fig. 3is a detail perspective view of the knife-operating devices.

This invention is an improvement in mechanism for severing sheets ofpaper from a continuous web thereof,andis especially designed pressestoseverthe sheets after they have been printed; and its objects are toemploy rotating cutting-rolls to effect the severing and reduce the sizeof said rolls, so that the machine can be compactly built, and to enablethe knife to be operated, as desired, either at each revolution of theroll or after a predetermined number of revolutions thereof; and to thisend the invention consists in the novel construcin the mechanism foroperating the knife, and in certain other novel details of constructionand combination of parts, as will be herein after clearly described andclaimed.

Referring to the drawings by letters, A des- B designates coaxing ordelivery tapes runers b b b and impinging against the face of roll A atone side and coacting therewith to draw forward the web of paper w.

G D represent the cutting-rolls about equal in diameter to roll A, rollC being arranged parallel with roll A and driven therefrom by anintermediate gear a and having a longitudinal groove cin its periphery.Roll D lies above and parallel with roll 0, but is hollow and has alongitudinal slot in one side; and within this roll Dis arrangedamovableknife and any suitable mechanism by which the blade can be projectedthrough slot d, the

Serial No, 378,194. (No model.)

' knife being directed by suitable guides e in the ends of the roll, butlies normally entirely within and concealed by the roll. This knife, 5 5as shown, is' formed With a series of inclined short slots ff, whichengage a series of pins F, projecting from a bar G lying axially withinthe roll and supported in the journals thereof,- through which itpasses, as shown in Fig. 2; '60 and the bar can be shiftedlongitudinally within the roll, this shifting causing pins F to ride upor down in slotsf, and consequentlyprojectingorretractingtheknife-edgethrough slot (1. The bar is normallyheld in a position to keep the blade retracted, by means of a coiledspring II, slipped on one end of the bar and bearing against thetrunnion of the roll, and against a collar h on the red, as shown.grooved collar I, which is engaged bythe bifurcated endj of a lever J,pivoted on a bracket K, attached to the frame of the machine, (notshown,) and the other end of the lever bears a friction-roller 10,adapted to run over 7 5 the cam-surface L on the Wheel Z, mounted on ashaft in the machine or press. (Not shown.) The cam-wheel is so arrangedand driven by any proper means (not shown) that at the proper moment itwill actuate lever J and cause it to shift bar G, thus projecting knifeE and causing it to coact with the groove 0 in roll C and sever the'w ebof paper passing between the rolls, and as soon as the lever is releasedfrom the cam the spring 85,

causes the return of the bar and knife to normal position, so that theweb is not again out until the bladeis again projected.

The cam-wheel may be geared to the roll A, if desired, as indicated, andthe gearing maybe made changeable, so as to enable the time of operationof the knife-blade to be varied, so that more or less of the web will befed between the rolls before the severing thereof. 5

The mechanism for driving the cam-Wheel and thus controlling themovements of the knife is not an essential part of the presentinvention, as it may be varied according to circumstances.

N n are upper and lower rollers beside rolls 0 D, and 0 care similarrollers at the rear end of the press.

T t are upper and lower endless tapes run- On the other end of the baris a 70 ning over rollers N O and n 0, respectively, and adapted toreceive the web of paper or severed sheets after they pass from roll DG, and direct them into a fo1ding-machine or other proper point ofdelivery.

P designates a vertically-adjustable roller lying intermediate therollers N O, and over which the upper portions of tapest andlowerportions of tapes T run, and Q is a roller beside and below roller P,under which the lower portions of tapes T and upper portions of tapes trun. These rollers cause a double bend in the contiguous portions oftapes T t, the portion of which between rollers P Q being almost atright angles to the other portions of the tapes. This bend in tapes Tcauses them to grip the sheets firmly and draw the web taut atthe momentof severing thereof by the knife, so that the cutting of the web isquick and even. The tapes are driven at a speed about twice as great asthe peripheral speed of the roll A by suitable gearing.

The web of paper after being imprinted is fed forward by rolls A andtapes B between the rolls G D, and when the proper length of paper haspassed between the rolls into tapes T t, the cam and its coacting partsoperate knife E, and the web is severed. Tapes T t, moving faster thanthe roll A, coax the web forward and the bend in the tapes increases thegrip or bite of the tapes on the web, and thus just before the knifeacts the web is stretched taut, and as soon as severed the tapes hurryforward the severed sheet out of the way and are ready to coax forwardthe web. The rolls C D will serve to feed forward the web, and mayrevolve continuously any number of times, so long as the knife is notprotracted, permitting the rolls to be made quite small and yet operatein cutting long or short lengths of paper from the web. Where the sheetsare very short, two or more knives might be arranged in the cylinder andoperated substantially as described, and various modifications might bemade in the devices for operating the knife, the essential feature andobject of the present invention being to out various lengths of sheetsfrom the web by small rolls, preferably having a peripheral speed equalto that of the web.

Having described my invention, what I claim as new, and desire to secureby Letters Patent thereon, is

1. The combination of the paper-web-feeding devices, the cutting-rollsdriven therefrom, one of which is hollow, a concealed blade in saidhollow roll, the longitudinally-movable sliding bar mounted in the rolland its connections for operating said blade, and the lever andcam foroperating said bar, substantially as specified.

2. The combination ofthe paper-feeding devices, the pair ofcutting-rolls, one of which is hollow and has a concealed blade withinit operated by a longitudinally-movable bar mounted in said rolls, andconnections between the bar and blade with the deliverytapes, the leverand cam for operating said bar, substantially as and for the purposedescribed.

3. The combination of the hollow cuttingroll, the longitudinally-movablebar therein, the movable knife connected to and controlled by said bar,the spring for controlling said bar to hold the knife normallyretracted, and the mechanism for shiftingsaid bar to project the knife,substantially as described.

4. The combination of the hollow roll D, having a slot d, thelongitudinally-movable spring-controlled bar G therein, the cutterbladeE, having-inclined slots f, engaged by studs F on said bar, and themechanism for shifting said bar, substantially as described.

5. The combination, in a paper-web-severing mechanism, of the roll A,the cutting-rolls C D, driven from roll A, the concealed knife in rollD, a sliding bar loosely connected to said blade, the cam and pivotedlever for operating said bar, and the delivery-tapes, all substantiallyas and for the purpose set forth.

6. The combination of a cutting-roll having an internal movable bladeadapted to be projected radially of the roll, with alongitudinally-movable bar mounted in the roll, and

connections between said bar and blade,

whereby the longitudinal movement of the bar causes the radialprojection or retraction of the blade, substantially as and for thepurpose set forth.

In testimony that I claim the foregoing as v my own I affix my signaturein presence of two witnesses.

JOSEPH L. OOX.

Witnesses:

T. H. ALEXANDER, S. BRASHEARS.

